Eaton PLSM-B20-MW Miniature Circuit Breaker 1P 20A 10kA

The Eaton PLSM-B20-MW is a high-quality single-pole miniature circuit breaker engineered to provide dependable protection for electrical circuits in various environments. With a rated current of 20A and a B-type tripping characteristic, this device is specifically designed to detect and interrupt overcurrents, effectively safeguarding wiring and connected equipment from the risks associated with overloads and short circuits in AC electrical systems.

Advantages

This circuit breaker stands out due to its robust construction and high breaking capacity of 10kA, which ensures reliable performance even under demanding conditions. The B-curve characteristic makes it particularly effective for protecting circuits with low inrush currents, such as lighting and heating systems. Its compact design allows for efficient use of space within distribution boards, while the Eaton brand reputation guarantees long-term operational reliability and safety compliance for both residential and commercial electrical infrastructures.

Suitable for

• Residential electrical distribution boards
• Commercial building lighting circuits
• Heating and ventilation control systems
• General purpose AC circuit protection

When it may not be suitable

This device is not intended for use in DC electrical systems or circuits where high inrush currents are expected, such as those powering large electric motors or transformers, as the B-type tripping characteristic may lead to nuisance tripping. It is also not suitable for environments exceeding its specified operating temperature or humidity ratings.

Key specifications

• Number of poles: 1
• Rated current: 20A
• Tripping characteristic: B-type
• Breaking capacity: 10kA
• Voltage type: AC

How to use

The Eaton PLSM-B20-MW is designed for professional installation on a standard DIN rail within a distribution enclosure. Ensure that the power supply is completely disconnected before attempting installation. The device should be snapped onto the rail and the supply and load conductors should be securely connected to the respective terminals, ensuring that the torque specifications are followed to prevent loose connections. Once installed, the toggle switch can be used to manually open or close the circuit.

What to consider before purchase

• Verify that the 20A rating matches the requirements of your specific circuit load.
• Ensure the B-type characteristic is appropriate for your connected appliances.
• Confirm that your distribution board has sufficient space for a single-module width device.
• Check that the 10kA breaking capacity meets the safety requirements of your electrical installation.

Usage recommendations

Always ensure that the circuit breaker is installed by a qualified electrician in accordance with local electrical codes and safety regulations. Regularly inspect the device for signs of wear or damage and test the functionality periodically to maintain optimal safety levels.